<template>
    <!-- 整个页面区域 -->
    <div class="login_container">
        <!-- 中间白色的盒子区域 -->
        <div class="login_box">
            <!-- 设置默认头像 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单 -->
            <el-form :model="loginForm" class="login_form" :rules="loginFormRules" ref="loginFormRef">
                <el-form-item prop="username">
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="loginFormReset">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
export default {
  data () {
    return {
        loginForm:{
            username:'',
            password:''
        },
        loginFormRules:{
            username:[
                {required:true,message:'请输入用户名',trigger:'blur'},
                {min:3,max:10,message:'长度在3到10个之间',trigger:'blur'}
            ],
            password:[
                {required:true,message:'请输入密码',trigger:'blur'},
                {min:6,max:15,message:'长度在6到15个之间',trigger:'blur'}
            ]
        }
    };
  },
    methods:{
        loginFormReset(){
            this.$refs.loginFormRef.resetFields()
        },
        login(){
            this.$refs.loginFormRef.validate(async valid=>{
                // console.log(valid)
                if(!valid)return 
                const {data:res} = await this.$http.post('login',this.loginForm)
                if(res.meta.status != 200)return this.$message.error('登录失败')
                this.$message.success('登录成功')
                window.sessionStorage.setItem('token',res.data.token)
                this.$router.push('/home')
            })
        }
    }
}
</script>
<style lang='less' scoped>
.login_container{
    background-color:#2b4b6b;
    height: 100%;
}
.login_box{
    width:450px;
    height:300px;
    background-color:#fff;
    border-radius: 3px;
    position: absolute;
    left:50%;
    top:50%;
    transform: translate(-50%,-50%);
}  
.avatar_box{
    height:130px;
    width:130px;
    border:1px solid #eee;
    //保证头像是圆的
    border-radius:50%;
    padding:10px;
    //添加阴影效果
    box-shadow:0 0 10px #ddd;
    position: absolute;
    left:50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
      width:100%;
      height:100%;
      border-radius:50%;
      background-color:#eee;
    }
  }  
  .login_form{
    position: absolute;
    bottom: 0;
    left:0;
    width:100%;
    padding:0 20px;
    box-sizing: border-box;
  }
  .btns{
    display: flex;
    justify-content: flex-end;
  }
</style>